This SFP module by Delock can be used to expand a Gigabit switch with a free SFP slot by an RJ45 interface. Specification - Connectors: 1 x SFP male > 1 x RJ45 jack - Data transfer rate: Ethernet up to 10 Mbps Fast Ethernet up to 100 Mbps Gigabit Ethernet up to 1 Gbps - 10/100/1000 Mbps with a SGMII interface - Operating temperature: 0 °C ~ 70 °C System requirements - Device with a free SFP port Package content - SFP module Package - White Box https://elecena.pl/product/18478263/86045-sfp-module-10-100-1000base-t-rj45 2021-05-16 https://elecena.pl/product/18478263/86045-sfp-module-10-100-1000base-t-rj45 2023-08-09